From 634fef61076d644b989b86abc2f560d81a089a31 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 16 Jun 2017 14:29:24 +0200 Subject: networking: add and use skb_put_u8() Joe and Bjørn suggested that it'd be nicer to not have the cast in the fairly common case of doing *(u8 *)skb_put(skb, 1) = c; Add skb_put_u8() for this case, and use it across the code, using the following spatch: @@ expression SKB, C, S; typedef u8; identifier fn = {skb_put}; fresh identifier fn2 = fn ## "_u8"; @@ - *(u8 *)fn(SKB, S) = C; + fn2(SKB, C); Note that due to the "S", the spatch isn't perfect, it should have checked that S is 1, but there's also places that use a sizeof expression like sizeof(var) or sizeof(u8) etc. Turns out that nobody ever did something like *(u8 *)skb_put(skb, 2) = c; which would be wrong anyway since the second byte wouldn't be initialized. Suggested-by: Joe Perches Suggested-by: Bjørn Mork Signed-off-by: Johannes Berg Signed-off-by: David S. Miller --- drivers/bluetooth/hci_qca.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/bluetooth/hci_qca.c') diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index e2c88515340a..392f412b4575 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -215,7 +215,7 @@ static int send_hci_ibs_cmd(u8 cmd, struct hci_uart *hu) } /* Assign HCI_IBS type */ - *(u8 *)skb_put(skb, 1) = cmd; + skb_put_u8(skb, cmd); skb_queue_tail(&qca->txq, skb); -- cgit v1.2.3-55-g7522